U4P2

How many oxygens atoms ( O )atoms in a molecule of H₂O?

• 1

• 2

• 3

• 0

Tags

NGSS.MS-PS1-1

 More than two atoms stuck together is called a ...................

• element 

• molecule 

• Chemical property 

• Physical property 

Tags

NGSS.MS-PS1-1

When a molecule is made up of more than two different elements ( Example CO₂)  we call this .......................

• a mixture 

• atom

• a compound 

Tags

NGSS.MS-PS1-1

What is the correct way to write the formula for the model of this compound?

• 2H₂0

• 2H₂O

• 2HO₂

• H₂O₂

Tags

NGSS.MS-PS1-1

How many atoms of iron does iron oxide (Fe₂O₃) contain?

• 1

• 2

• 3

• 5

Tags

NGSS.MS-PS1-1

Which chemical formula could be represented by this sample?

• NaCl

• H₂

• C₆H₁₂O₆

• Cu

Tags

NGSS.MS-PS1-1

How many different elements are in an amino acid with the formula C₅H₁₁NO₂S?

• 5

• 20

• 18

• 4

Tags

NGSS.HS-LS1-6

9 is pointing at a chain of amino acids, this creates a

• codon

• anticodon

• polypeptide chain (protein)

• rRNA

Tags

NGSS.MS-LS1-7

_______ is made during transcription and ________ is made during translation.

• mRNA / a protein

• a protein / mRNA

• Ribosome / Nucleus

• mRNA / tRNA

Tags

NGSS.MS-LS3-1

Which RNA bases would pair with TAC  in transcription? 

• AUG

• ATG

• GCA

• GCA